My Character Controller Is Warping Randomly (/w video)

Since a picture is worth a thousand words, I uploaded a movie.

http://www.youtube.com/watch?v=E3svM38kHm4

Seconds 7-18 show desired, correct response with the character controller. Seconds 18 onwards show the incorrect response.

I did not have any issues with my code (random warping, etc.) until I added in the vehicle hit/recoil feature, but I still don't know what would be causing it. My code gets triggered in OnTriggerEnter() and then uses a CoRoutine to follow through with my code.

EDIT: In the "hitVehicle" function, it's the player that's moving - not the vehicle! It's a poorly named function with a poorly named variable on the inside that I'll be sure to correct :)

EDIT2: So, I discovered when the problem crops up. When the player gets flung (during the coroutine), if the player moves surfaces - from one collider onto another - than the problem is more likely to crop up.

Also, if I don't resume normal gameplay (e.g., leave 'hitVehicle' as active even after the coroutine is finished), the player stays in the same place. So something in my normal code is causing issues with everything... though I'm not sure what. OnTriggerEnter:

 public void OnTriggerEnter(Collider other)
      {
          //check to see if the trigger entered is a vehicle
          if (other.gameObject.layer == 15)
          {
              //rem yes it is, check to see if we're not standing on a vehicle
              if ((activePlatform == null)||(activePlatform.gameObject.layer != 15))
                   {
                      Vector3 direction;
                      direction = transform.position - other.transform.position;
                      direction.y = 0.0f;
                      StartCoroutine(HitVehicle(direction));
                   }
          }
      }

Coroutine HitVehicle:

  public IEnumerator HitVehicle(Vector3 direction)  

{ float currentTime = 0.0f; float gravity = direction.y; Vector3 hitVelocity; direction.y = 0.0f;

//set character status to hit vehicle so that nothing else (normal character control) //can resume until set to false hitVehicle = true;

while (currentTime < 1.5) { if (!LevelManagerScript.Instance.GetFrozen()) { hitVelocity = direction * Time.deltaTime;

if (character.isGrounded) { gravity = 0; } else { gravity += (Physics.gravity.y * Time.deltaTime); }

hitVelocity.y = gravity; //convert to real world coordinates transform.TransformDirection(hitVelocity); //move the character character.Move(hitVelocity); //update timer currentTime += Time.deltaTime; Debug.Log("moving");

//update active platform based on collisions if (activePlatform != null) { //get values activeGlobalPlatformPoint = transform.position; activeLocalPlatformPoint = activePlatform.InverseTransformPoint(transform.position); }

//Verify we're ontop of a platform VerifyAbovePlatform(); }

yield return null; }

//reset velocity velocity = Vector3.zero;

//set forward speed to nothing forwardSpeed = 0.0f;

//let the player get hit by the vehicle again hitVehicle = false;

//clear out last line of the log so it looks 'clear' Debug.Log(" "); }

And here's the tail beginning of my Update function.

  void  Update (){
  //leave if paused
  if (LevelManagerScript.Instance.GetFrozen())
  return;
  
  //leave function if hit by vehicle
  if (hitVehicle)
  return;
 
               ....
          }

I just implemented this last night, and I know there are some more improvements that could be made. But I don't understand where the 'warping' part comes into play? Does anyone else know what might cause this to happen?